20510908

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{17}}^2\times {\mathrm{1613}}^1$

素因数の和:1662

約数の個数: 36

約数和(自身を含む): 41621832

約数和(自身を除く): 21110924

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 187, 289, 374, 578, 748, 1156, 1613, 3179, 3226, 6358, 6452, 12716, 17743, 27421, 35486, 54842, 70972, 109684, 301631, 466157, 603262, 932314, 1206524, 1864628, 5127727, 10255454, 20510908]

約数ペア:

[(1, 20510908), (2, 10255454), (4, 5127727), (11, 1864628), (17, 1206524), (22, 932314), (34, 603262), (44, 466157), (68, 301631), (187, 109684), (289, 70972), (374, 54842), (578, 35486), (748, 27421), (1156, 17743), (1613, 12716), (3179, 6452), (3226, 6358)]